Polyvinyl alcohol and polyvinyl pyrrolidone mixtures as dye-dono

Details Polyvinyl alcohol and polyvinyl pyrrolidone mixtures as dye-dono Polyvinyl alcohol and polyvinyl pyrrolidone mixtures as dye-dono

1991-05-16

1992-09-15

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

428195, 428341, 428480, 428500, 428520, 428913, 428914, B41M 5035, B41M 526

Patent

active

051478439

ABSTRACT:
A dye-donor element for thermal dye transfer comprises a support, a hydrophilic dye barrier/subbing layer comprising a mixture of polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP) and a dye layer. The PVA is present in the mixture from about 15 to about 35 weight-percent. The dye-barrier/subbing layer provides improved dye transfer densities.

REFERENCES:
patent: 4547456 (1985-10-01), Kojima et al.
patent: 4591544 (1986-05-01), Sasa et al.
patent: 4700208 (1987-10-01), Vanier et al.
patent: 4716144 (1987-12-01), Vanier et al.
patent: 4734397 (1988-03-01), Harrison et al.
patent: 4748149 (1988-05-01), Byers
patent: 4770981 (1988-09-01), Komamura et al.

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